Error message E_Adept_Request_Expired

I tried to open my first book and this is the message I got.  So I went to ADOBE help which suggested my computer settings were not matching the time stamp on the book I had borrowed.

I borrowed the book two nights ago from our local library ( 21 day loan) and My computer is registering the correct day, time and time zone.  I could see no other suggestions.

Does any one here have any?